4-meo-pbp with a IUPAC name of 1-(4-methoxyphenyl)-2-(pyrrolidin-1-yl)butan-1-one is related to a-pbp structurally in that one added methoxy group in the fourth position to the benzene ring. The chemical formula for 4-meo-pbh is C15H21NO2 with a molecular weight of 247.33274 g/mol and an exact mass of 247.16. The InChI Key is BXVBGQDJXXGMRX-UHFFFAOYSA-N and the InChI is 1S/C15H21NO2/c1-3-14(16-10-4-5-11-16)15(17)12-6-8-13(18-2)9-7-12/h6-9,14H,3-5,10-11H2,1-2H3

At this time, research on 4-meo-pbp has not determined the biochemical, physiological, and toxicological properties, thus more research is needed. If properly stored at -20°C, 3-meo-pcp will have a shelf life of up to two years.

4-meo-pbp is only intended for scientific and forensic research and is NOT for human consumption.